Fertilizer
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A fertilizer or fertiliser is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients. Fertilizers may be distinct from liming materials or ot
A farmer spreading manure to improve soil fertility
Founded in 1812, Mirat, producer of manures and fertilizers, is claimed to be the oldest industrial business in Salamanca (Spain).
Six tomato plants grown with and without nitrate fertilizer on nutrient-poor sand/clay soil. One of the plants in the nutrient-poor soil has died.
Compound fertilizer
Sustainable agriculture
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Sustainable agriculture is farming in a way that reduces environmental harm, aids and expands natural resources and ensures that non-renewable resources are harnessed for productive purposes. It can b
Shade-grown coffee, a form of polyculture (an example of sustainable agriculture) in imitation of natural ecosystems. Trees provide resources for the coffee plants such as shade, nutrients, and soil structure; the farmers harvest coffee and timber.
Conservation farming in Zambia.
Walls built to avoid water run-off, Andhra Pradesh, India
Dr. Carver teaching farmers from a Jesup Wagon.